January 14, 2026
Description
This Improved Tag Holder for @GunplaMark's The Ultimate Cereal Container Filament Drybox remains on the drybox at all times - the filament tag only needs to be swapped out when a different brand or color of filament is loaded into the drybox. In the original design, the Tag Holder snapped onto the Coupler Cap - requiring you to keep track of which Coupler Cap and which filament tag belonged on each drybox every time you unloaded filament from your printer.
Simply slide this Improved Tag Holder onto the coupler before securing it to the drybox with the coupler nut, straighten it out just one time, and you're ready to slide in a filament tag whenever you place a spool of filament in the drybox.
This Improved Tag Holder works great with the original Coupler Cap or with my Improved Coupler Cap (and Coupler Cover) for Ultimate Filament Drybox - which improves the grip on the filament and eliminates the bending of the end of the filament as seen with the original design.
The following photo shows the Improved Tag Holder along with a filament tag and the coupler parts needed for assembly on a drybox:
The following photo shows the Improved Tag Holder (permanently) attached to a drybox:
The following photo shows the Improved Tag Holder (permanently) attached to a drybox with a filament tag inserted in the holder:
The following photo shows an Improved Tag Holder in use with my Improved Coupler Cap for Ultimate Filament Drybox attached:
The following photo shows four Improved Tag Holders in use with three of my Improved Coupler Caps (and one Coupler Cover) for Ultimate Filament Drybox attached:
To allow modifications, I have provided a STEP (.stp) file.
3MF files have been provided for 1 Tag Holder and for 6 Tag Holders.
A G-code file has been provided for the Original Prusa MK4 for PETG for 1 Tag Holder.
The Improved Tag Holders seen in the photos were printed with Sunlu White PETG with a 0.4mm nozzle at 0.2mm layer height with a 15% gyroid or grid infill. Supports are not needed.
Be sure to check out my other designs - including universal key covers and a diverse collection of household accessories and 3D printing tools - on Printables at https://www.printables.com/@PhilCaruso/models
License:
Creative Commons — Attribution — Noncommercial
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